Shuttle placing mechanism



Aug. 20, 1935. o. v. PAYNE SHUTTLE PLACING MECHANISM Original Filed Aug. 29,

B my w rv e I mow m CM m WU m F. a 8 Q m a: 2 J A s W. w m AU Patented Aug. 20. 1935 g N T; OFFICE; I

I .snU'r'rIlE r AoiNo MECHANISM Oscar V. Payne, Leicester, Mass, assignor to Crompton & Knowles Loom Works, Worcester, Mass, a corporation of Massachusetts Application This invention relates'to a shuttle placer for looms and it is the general object 'of the invention to provide means operative to insure the proper location of the shuttle with respect to 5 the picker priorto'the picking operation;

I In the usual loom the shuttle enters the shuttle box with sufficient force to rebound due to the inability of the binder or shuttle check to absorb all of the .energy of motion ofthe shuttle before the latter strikes the picker. The amount by which the shuttle rebounds, however,- is not a1 ways the same, and the picker must travel different distancesbefore engaging the shuttle with a resultantunevenness in the picking.- It is an important object ofmy invention-to prokvidemeans operative-after the shuttle has had" QppQrtunity to rebound to move it out toward the picker so that there will be uniformity I? in successive picks with attendant evenrunning-of- .theshuttle. I It isa'further object of my inventiontoplace the shuttle by friction means in contact with'the shuttle-at the time of the placing operation,- so

that even though the shuttlebeonly slightly; misplaced, the friction means can. slide along I the-shuttle, or on the device which moves it,

after the shuttle is placed.

It is a, still further object of my invention to provide a form of shuttle placer which shall also be'capable of resisting movement of the shuttle. In this connection thesame surface which fric tionally returns a rebounded shuttle to its proper position acts also to check the shuttle against rebounding. The shuttle {placing 1 mechanism will operate whether the shuttle rebounds, is 1 boxed-correctlyin the first instance, or is unable to reach the picker under its own power, and these results are accomplished by the same travelling surface. I I I I It is another object of my" invention to provide a" shuttle placer which shalllie to oneside and along the path of the picker so that a relatively large surface contact maybe had between the shuttle and the placer without interference on the part of the picker,"and also to permit the placer toserve, as one side or part of the shuttle box at the time of picking. I

With these and other objects in view which .will appear as the description proceeds, myinvention resides in 'thecombination and arrangement 'of parts hereinafter in the claims. r k

In the accompanying drawing, wherein a condescribed and set? forth venient embodimentof my invention is set forth.

August 29, 1933, semiNolesmez Renewed June 19, 1935 I I 16 Claims. (oi. 139- 252) Fig. 1 is atop plan viewof a lay having my invention "applied thereto, f" Fig. 2 is aside elevation on a reduced scale showing diagrammatically the relation of the invention to certain parts of the loom, Fig. 3 is a detailed horizontal section on line 33ofFig.2, s I Fig. 4 is a detailed vertical section 'on line 4-4 of Fig. 1 showing the control and I l I Fig. 5 is a vertical. section on line 5-'-5 of Fig.1.

Referring to the drawing, I have shown a lay 59 having a box front H pivotally supporting at l2 a shuttle binder it; The latter is urged yieldingly rearwardly by binder spring ld and at the inner end has engagementwitha promeans for .the belt, I ".10'

tectorfinger HE. A picker I6 is propelled by the picker stick i'i'to pi'ckthe shuttle 'S from'the shuttle box designated generally at '13. A box back or shuttle guide It may becarried by the lay in alignment with reed 19'. The lay is Fig. 2, as pivoted about rocker shaft 2i, and driving connections not shown but of usual construction move the lay toward andfrom the breast beam 22: The matter thus far described may be of common construction and of itself forms nopart of my present invention.

In carrying my invention into effect I secure a stand 38 'to the'rearof -the 'lay adjacent the outer end thereof,-as shown in Fig. 1, and secure in said stand a stud 3| upon which is rotatably mounted a pulley 32' having preferably a groove 33. In the present instance this pulley or guide ismounted'forfree rotation'about the stud 3|, although this is not essential tocertain features of myinvention'.

A second stand 35 is also secured in the back of the lay but nearer the center of the loom than stand to and has projecting upwardly therethrough a shaft 36 having a shoulder 3? on which. rests a second guide or pulley 38. The latter is also provided with-a groove 39 which receives a-shuttleengaging belt Ml. v

Thepulley 38 is bored out to receive a clutch member 45 having notches 4G which define with the internal bore ll of the pulley wedge shaped pockets t8. Located-in these pockets are vertical pins orrollers 9,9 which are slightly less in diameter than the Widest part of the pockets. The

mountedon swords 20, one of which is shown in conical head'fill which isreceived by a corre-v spending conical bore Si in the clutch member 45. -A' Washer 52' extends over the pockets to by a nut 53 on the upper reduced threaded end 54 of the shaft. The clutch member is connected to the shaft 36 by a key 55 so that rotation of said shaft causes a corresponding rotation o the clutch member. I

The lay has secured to the lower side thereof a depending stand 60 with a bearing 6t through which the shaft 36 extends. shaft has secured thereto an arm 62 the forward end of which is provided with a roll 63. The latter extends into the groove 64 ofa cam, 65 secured to the loom frame F. The cam has a dwell portion 66 at the rear thereof and ariser 51 which may terminate in a second short'dwell 68. Since the arm 62 is secured tothe shaft as by a set screw It, back and forth motion of the lay will result in movement of the roll toward and from the frame F to produce an oscil: iation of the shaft 36. In operation, the shuttle will ordinarily be picked when the lay is on so-called top center and moving rearwardly, or at a point approximately one-half way between the front and back extreme positions of the lay. During the flight of the shuttle the lay moves rearwardly, and also generally moves forwardly somewhat before the shuttle is completely boxed anddurin'g' this part of the lay motion when the shuttleis in flight the roll 64 is in the dwell 65 of the cam slot. After thelay has moved'forwardly to a point where the shuttle is boxed if I protection is to .be avoided, the roll will engage the riser 6'! the effect of which will be to [cause a counter clockwise oscillation of the shaft 36 as viewed in Figs. 1 and 3. There results a rockmg of the} clutch 45, so that the reduced end of the pockets will approachthe rollers, causing them to'grip and turn the pulley 38 in a counter clockwise direction. The part of the belt 40 which is in engagement with the shuttle will thereuponmove in the direction of arrow A, Fig. 1 so that if the shuttle be in the dottedposition shown in Fig. 1 it will be moved outwardly to the full line position to assume its'correct-relation with respect to the picker. A stop 80 limits movement of the picker and acts to hold the shuttle against improper outward motion should it be only slightlymisplaced.

,When the roll reaches'the short dwell turning of the shaft 36 ceases, andas the lay begins to move rearwardly the roll 63 will move inwardly along the cam 61 to give the shaft its return or clockwise movement, thereby moving the large part of the pockets toward the rolls so that the latter are released. In this way restoration of the shaft and clutch to the position normal for the backward position of the lay is accomplished Without disturbing the shuttle.

At the time of picking the belt 40 is moved by its frictional engagement with the, shuttle to travel around in a clockwise direction as viewed in Fig. 1 so that frictional engagement between the pulley 38 and the rollers will move the latter toward the small end of the pockets, after which further movement of the belt is resisted. The shuttle therefore is picked againstpressure or resistance, asis usual.

It is to be noted that whentheshuttle enters the box after being picked from theopposite side of the loom the belt is free to turn in a clockwise direction without resisting themovement of the shuttle. The previously described resistance offered to the picking of the shuttle immediatelv becomes operative should thflshut- .The bottom ofthe V 7 2,012,051 retain the rollers and is held against the clutch tle attempt to rebound prior to picking. This checking of the shuttle-rebound is found to be sufficient, to keep the shuttle near, enough to the picker so that the throw of the cam is sufiicient to restore the shuttle to its proper picking position.

, From the foregoing it will be seen that I have provided a movable element having a surface to engage a. shuttle and define one wall of a shuttle box, the surface acting to place the shuttle j against the picker. It will also be seen that the movable surface is so controlled that it tends to prevent rebounding and thereby acts initially to prevent the effect which it is to correct, in this way reducing the amount of the placing action. Furthermore, the shuttle placing mechthe picking ofthe shuttle, as is usual.

Having thus. described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details hereindisclosed, butwhat I claim is:

1. In a loom having a lay and a shuttle box and a picker to propel the shuttle out of the shuttle box, an element forming part of the shuttle box movable longitudinally of 'the lay, and means to move said element toward the picker when in contact with the shuttle. V

2. In a loom having a lay, a picker to propel the shuttle, and frictional means movable longitudinally of the lay to engage the side of the shuttle and move thesame against the picker and remaining in contact with the shuttle when the latter is picked. v i

, 3..In a loom having a lay and shuttle box movableback and forth therein, a picker to propel the'shuttlaand frictional means forming part of the shuttle box to engage the side of the shuttle and dependent uponmovement or" the lay to move the shuttle against thepicker. 1 i

4. In aloom having a lay and shuttle box movable back and forth-therein, a picker to propel of the shuttle box operative during forward movement of the lay to engage the side of the shuttle and move the same against the picker.

; 5. In a loom operating with a shuttle and picker, means having a periodic movement of given extent to engage the shuttle frictionally and move the same against the picker and remaining in contact with the shuttle when the latter is picked. Y h

6. In a loom operating with a shuttle and having a lay and picker, a friction element extending along the lay for engagement with the shuttle, means to move said element in a direction to move the shuttle against the picker when the shuttle is boxed, and means to resist movement of the element in the opposite direction.

'7. In a loom operating with a shuttle and having a lay and picker, a flexible element to have frictional engagement with the shuttle,- and means to give said element a step by stepmovement in the same direction to move the shuttle toward the picker.

8.- In a loom operating with a shuttle and picker, a belt mounted for engagement with the shuttle, and a drive pulley for the belt effective to move that part of the belt in engagement with the shuttle toward the picker.

9. In a loom operating with a shuttle and picker, a belt for engagement with the shuttle, a

pulley in contact with the belt, and means to drive said pulley in a direction to cause the part of the belt in contact with the shuttle to move toward the picker.

10. Ina loom operating with a shuttle and picker, a pair of pulleys located at spaced points along the lay, a belt for said pulleys having a part located for engagement with the shuttle, and means to turn one of said pulleys to cause said part of the belt to move toward the picker.

11. In a loom operating with a shuttle and picker, a belt mounted for engagement with the shuttle, a pulley to drive the belt, and a clutch efiective todrive the pulley in the direction only that will move the part of the belt in contact with the shuttle toward the picker. 7

12. In a loom having a shuttle box and operating with a shuttle and picker, a friction element forming part of the shuttle box and mounted for engagement with the shuttle, and means efiective to move said element toward the picker to place a misplaced shuttle and hold said element against movement in the opposite direction to resist rebounding of the shuttle.

13. In a loom operating with a shuttle and having a lay and picker, a friction element to engage the shuttle, and means to move said element in a direction to move the shuttle toward the picker and also resist movement of said element in the opposite direction, said means remaining in contact with the shuttle when the latter is picked.

14, In a loom having a shuttle and picker, a shuttle box forming element to engage a shuttle being boxed, and means operative after the normal time for boxing of the shuttle effective to move said element toward the picker while in contact with the shuttle.

15. In a loom having a shuttle and'picker, a shuttle box forming element to have engagement with the shuttle while the latter is boxed, and

means operative after the normal time for box-' ing of the shuttle to move said element while in contact with the shuttle toward the picker.

16. In a loom having a shuttle and picker therefor, a frictional element movable toward the picker while in contact with the shuttle to place the latter and thereafter remainingin contact with the shuttle during picking of the shuttle by the picker.

OSCAR v. PAYNE. 

